Home / 76,240.64-105,212.08-42,706.56

Finding the Fourth Proportional to 76,240.64, 105,212.08 and 42,706.56

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Solution

The fourth proportional to 76,240.64, 105,212.08 and 42,706.56 is: 58,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.64 : 105,212.08 = 42,706.56 : x
  2. Step 2: Convert to fraction form
    76,240.64/105,212.08 = 42,706.56/x
  3. Step 3: Cross multiply
    76,240.64x = 105,212.08 × 42,706.56
  4. Step 4: Simplify right side
    76,240.64x = 4,493,246,007.24
  5. Step 5: Solve for x
    x = 4,493,246,007.24/76,240.64
  6. Step 6: Final answer
    x = 58,935.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.